Welder&#39;s hood



April 14, 1931. H. c. GREENE S HOOD WELDER Filed March 27, 1930 2Sheets-Sheet 1 1N VEN TOR.

#A #L /f (L rDE GREENE,

A TTORNE YS.

April 14, 1931 H. c. GREENE 1,800,623

WELDERS HOOD Filed March 27, 1930 2 Sheets-Sheet 2 INVEN TOR.

A TTORNEYS.

'Patented Apr. 14, 1931 UNITED STATES PATENT Y OFFICE HARLIS CLYDEGREENE, OF VALLEJO, CALIFORNIA, ASSIGNOR OF ONE-THIRD TO JOHN S. NORTONAND ONE-THIRD TO W. F. HOLLINGSWORTH, BOTH OF SAN FRANCISCO,

CALIFORNIA WELDERS HOOD Application filed March 27, 1930. Serial No.439,447.

The present invention relates to improvements in welders hoods and itsparticular object is to provide means facilitating the opening of thelenses for allowing the user a clear view of the materials to be workedon. A further object of the invention is to provide means for openingthe lenses that may be worked by a movementJ of the chin and thereforedoes not require the use of the hands which not only saves considerabletime but leaves the hands free for other purposes.

A further object of the invention is to provide means for automaticallylocking the lenses in open position. A further object of the inventionis to provide locking means that will yield to further chin movement forallowing the lenses to return to closed position.

Further objects and advantages of my in vention will appear as thespecification proceeds.

The preferred form of my invention is illustrated in the accompanyingdrawing, in which Figure 1 shows a vertical section through my weldershood, the lat-ter being shown 1n its relation -to a human head;

Figure 2 a rear view of the hood;

Figure 3 'a horizontal section taken along line 3-3 of Figure 1;

Figure 4 an enlargedV detail section taken i along line 4.--4 of Figure2; and

Figure 5 a similar section showing certion.

While I have shown only the preferred form of the invention, I wish tohave it understood that various changes or modiications may be madewithin the scope of the claims hereto attached, without departing fromthe spirit of the invention.

In its preferred form my invention comprises a conventional head gear 1,a hood section 2 of conventional form pivoted thereto as at 3, a glassor lens 4v pivoted to thehood as at 5 for swin ing motion -between openand closed position, and operating means for openin and closing the lensshown at 6. 4 The hea gear comprises a hand 7 adapted 5 to surround thehead in substantially horitain elements in a different Working posi-vzontal position, open in the rear as shown at 8 and compressed by twospring members 9 which are supported by a second horizontal band 10fastened to the first band as shown at 11. A vertical band 12 isarranged transversely across the bands thus far described for resting ontop of the head and this band terminates in loops 13 to which the hoodsection is pivoted as shown at 3.

The hood section is of conventional form and the lens 4 has two spacedrojections 14 extending beyond its pivot, springs 15 acting on theseprojections for normally closing the lens. These projections also have ayoke 16 suspended therefrom, the yoke including two legs 17 and atransverse member 18 adj ustably secured to the ends thereof by means ofnuts 19. The transverse member is preferably made of fiber and normallyextends under the chin of the person using the hood. It is kept at asutlicient distance from the front wall of the hood by its length sinceit projects beyond the legs 17 as shown at 20 which in conjunction withthe curved form of the hood normally holds the member 18 in the positionshown in Figure 1.

Itwill be seen that for opening the lens it is merely necessary for theuser to depress his chin, which will cause the lens to move into thedotted line position indicated in Figure 4. i

Iny connection with the opening means, I provide means for maintaininthe lens in open position illustrated particularly well in Figures 4 and5. This means comprises a link 21 pivoted in a cip `22 extending in-Wardly from the hood section above one of the pins 23 by means of whichthe yoke is suspended from the projection 14. As this projection is swundownward and the pin f 23 moves downwar with it, it rides along one edge24 of the link 21 until it enters a recess 25 which is formed to holdthe pin 23 against reverse motion. This recess, however, allows offurther advance motion of the pin 23 and such further advance graduallyleads the pin out of the recess. The link 21 has a bridging member 26pivoted thereto as at 27 and this bridging member normally occupies theposition shown in Figure 5 so as to present a nose 28 at the ent-ranceto the recess which is crowded away by the pin entering the recess. Asthe pin travels further it swings the bridging member into a positionwhere it does not interfere with the exit of the pin 23, and as soon asthe pin 23 has cleared the recess altogether the member 26 drops backinto the position-shown in Figure in which it forms a bridge across therecess lo for the pin as the latter returns. A spring 29 fastened to thelower end of the link 21 The manner in which my invention is used ilshould bereadily understood from the fore- .,25 going description.` Foropening the lens the operator merely depresses his chin until the pin 23riding along the edge of the link 21 1s caught in the recess 25. Now thelens is automatically held in the open position. To 1F35 ,close the lensthe operator executes a further chin movement whereby the pin 23'ismadeto leave the recess 25 and to pass the upper edge ofthe bridging member26, which latter thereupon returns to the osition shown in Figure 5, andforms a bri ge for the returning pin 23, and thus allows the lens to beclosed due to the action of the springs '15.

I claim:

1,L In a welders hood, a hood section pivoted thereto, chin-actuatedmeans for swinging the section into open position, a member carried bthe hood section and having a hookshaped7 recess, a pin'carried by thesection and being receivable in the recess when said 45 means swingssaid sectlon into open posltlon,

and a gravity-actuated bridging member pivotally secured to the firstmember and normally leaving the recess unobstructed,

said means upon further movement causing the pin to en age with thebridging member,

whereby a releasing of the means will permit the closing of the section.A

2. In a welders hood, a hood section pivoted thereto, chin-actuatedmeans for swing- 55 lng the section into open position, a memberElvotally carried by 'the hood section and y aving a hook-shaped recess,spring means for moving said member in one direction, n

d pin carried by the section and being receivable in the recesswhen-said means swings said section into open position, and agravitybridging member, whereby a releasing of the means will permit theclosing ofthe section.

3. -In a welders hood, a hood section pivoted thereto and having an armextending into the hood and provided with a pin, chin actuated 'meansfor opening the section andcausing the pin to move, a hook-sha ed memberdisposed in the path of the pin or engaging with it when the section isopened for holding the section in open position, a bridgin memberpivotally carried b the hook-shape member and being engage by the pinwhen said means moves the pin out of engagement with the hook-shapedmember, said section when released bysaid means moving the in intonormal position, the bridging mem r `preventing the pin from engalgingwith the 1s movement.

ook-shaped member durin t HARLIS CL E GREENE.

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actuated bridging member pivotally secured to the first member andnormally leaving the recess unobstructed, said means upon further 65movement causing the pin to engage with the

